Home / 786,734,033.19-1,085,696,433.49-434,312,919.85

Finding the Fourth Proportional to 786,734,033.19, 1,085,696,433.49 and 434,312,919.85

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Solution

The fourth proportional to 786,734,033.19, 1,085,696,433.49 and 434,312,919.85 is: 599,353,743.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,734,033.19 : 1,085,696,433.49 = 434,312,919.85 : x
  2. Step 2: Convert to fraction form
    786,734,033.19/1,085,696,433.49 = 434,312,919.85/x
  3. Step 3: Cross multiply
    786,734,033.19x = 1,085,696,433.49 × 434,312,919.85
  4. Step 4: Simplify right side
    786,734,033.19x = 471,531,988,098,839,488
  5. Step 5: Solve for x
    x = 471,531,988,098,839,488/786,734,033.19
  6. Step 6: Final answer
    x = 599,353,743.71

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.